S
superfootwear
New Member
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- 13
Hi all wanted to know if anyone could help out with this boosting problem that I'm having. When I try to run boost after the car has been running for about ten to fifthteen mins the car holds back and starts popping at around 4000 rpm. But when the car has been running for over 25 mins they isn't any problems with it boosting or holding back. Does this sound normal or is there something wrong that I'm missing. The car is an evo 7 with only a exhaust and air filter and dumpvalve modified on it.